If you have a half marathon or marathon on the horizon, or even a 10K, it might seem counterintuitive to go out and train your body to run 100 meters as fast as you can. But even if you’re gearing up ...

Most people want a simple answer to “What’s a good time?” The honest one: it depends on the distance, your age, and whether we’re talking sprint speed or endurance pace. Below are practical, ...